you bring up india, australia, the uk, canada, japan. is this the result of people taking antibiotics when we don't know need them and then our bodies, when we finally do need them have somehow built up a defense against the drugs meant to help us? >> well, this particular bug has developed such a resistance because of, basically, frivolous use of antibiotics in certain areas of the world. when you, when they have this kind of selective pressure, that means they just have to become more and more resistant in order to survive. so, they will. >> what is your advice to people out there concerned about this or even the next time we're sick and we ask our doctor for a z pack or any other antibiotic. >> i tell you right now, this gene does not necessarily make the bacteria more aggressive or mean or more vicious. the bacteria is the same. it's only when these bacteria that have this gene cause an infection. it basically makes it our ability to treat this infection is a lot more limited than we would like. we can't can treat it. >> we understan